In a statement, Panera Bread said it was recalling all 2 oz. and 8 oz. cream cheese products with an expiration date on or before the second of April 2018 (4/2/18).

“Tests on cream cheese samples manufactured both before and after the production run in question have all come back negative,” the company said.

The company’s president and CEO, Blaine Hurst, added that Panera Bread “[has] likewise ceased all manufacturing in the associated cream cheese facility” until further notice. As for the seriousness of the matter, previous instances of listeria food contamination have lead to significant bouts of sickness and death. Recently, a foodborne outbreak in South Africa killed at least 61 people. Listeria monocytogenes is, of course, a fairly common pathogen that otherwise succumbs to people’s healthy immune systems. However, significant amounts can do a lot of damage — especially to those who are already sick, young, or old.